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JAMA Cardiology Clinical Challenge
October 13, 2021

A Teenager With Palpitations

Author Affiliations
  • 1Department of Cardiology, Maimonides Medical Center, Brooklyn, New York
  • 2Department of Internal Medicine, Maimonides Medical Center, Brooklyn, New York
JAMA Cardiol. Published online October 13, 2021. doi:10.1001/jamacardio.2021.4017

A young man nearing the end of his second decade with no significant medical history presented to the emergency department with a 1-day history of intermittent palpitations and chest pain associated with shortness of breath. On presentation, the patient appeared anxious with a heart rate of 101 beats per minute, respiratory rate of 20 breaths per minute, blood pressure of 151/79 mm Hg, and pulse oximetry of 96% in room air. His cardiopulmonary examination results, complete blood cell count, basic metabolic panel, and cardiac troponins were all within normal limits. His electrocardiogram on presentation and echocardiogram are shown in Figure 1 and the Video.

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